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WorksheetsElectrical and Magnetic field lines
Total questions: 51
Worksheet time: 26mins
Name
Class
Date
1.
What atomic particles make up the nucleus of the atom?
a)
Electrons and protons
b)
Neutrons and electrons
c)
Neutrons and protons
d)
Protons, Neutron, and Electrons
2.
What atomic particles move from one surface to another in order to form a static charge?
a)
Electrons
b)
Protons
c)
Neutrons
d)
All of them electrons, protons, neutrons
3.
What is static electricity?
a)
Electricity that flows in one direction
b)
Electricity that is sent over the air
c)
Electricity that constantly changes direction
d)
An electrical charge on the surface of an object
e)
It is another name for digital electronics
4.
Which subatomic particle has a negative charge?
a)
Proton
b)
Neutron
c)
Electron
d)
Enlighton
5.
If an object has more positive charges than negative charges, the net charge is
a)
neutral
b)
positive
c)
negative
6.
The accumulation of excess electric charge on an object is called
a)
Static electricity
b)
Electric discharge
c)
Resistance
d)
Circuit
7.
Walking across a carpet is an example of charge being transferred by
a)
friction.
b)
induction.
c)
contact.
d)
static electricity
8.
Which of the following is an example of static electricity?
a)
An electric socket in your home
b)
Electricity for a light bulb
c)
Your socks sticking to your pants as they come out of the dryer
d)
All of the above
9.
What is the flow of electrical charges called?
a)
Voltage
b)
Resistance
c)
Current/electricity
d)
Circuit
10.
What happens when two items with positive charges come close to each other?
a)
They attract each other
b)
They will join together
c)
They will cause an explosion
d)
They repel each other
11.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
12.
A great conductor of energy is:
a)
wood
b)
plastic
c)
metal
d)
cloth
13.
Which one is an insulator?
a)
Silver
b)
Copper
c)
steel
d)
plastic
14.
The process of transferring charge by touching is known as
a)
Induction
b)
Conduction
c)
Friction
d)
Conductor
15.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
16.
What happens when two items with one with a positive charges and the other with a negative charge come close to each other
a)
They attract each other
b)
They will join together
c)
They will cause an explosion
d)
They repel each other
17.
What type of electronics can be easily damaged by a static electricity discharge?
a)
Electronic chips
b)
batteries
c)
Fans
d)
Copper wires
18.
In what direction does the electrical field flow?
a)
out of the positive, into the negative
b)
out of the negative, into the positive
c)
around the positive charge only
d)
around the negative charge only
19.
A system consisting of a positive charge and a negative charge.
a)
monopole
b)
dipole
c)
lone pair
d)
circuit
20.
The charging of a neutral object without direct contact is called _________________.
a)
induction charging
b)
convection charging
c)
friction charging
d)
wi-fi charging
21.
If you know the direction of a current flowing through a wire what method helps you determine the direction of the magnetic field?
a)
point the thumb of your right hand along the wire in the direction of the current, I. Your fingers will then curl around the wire in the direction of the magnetic field.
b)
point the thumb of your left hand along the wire in the direction of the current, I. Your fingers will then curl around the wire in the direction of the magnetic field.
c)
point the fingers of your right hand along the wire in the direction of the current, I. Your thumb will then curl around the wire in the direction of the magnetic field.
d)
there is no magnetic field when an electrical current flows through a conductor
22.
An electrical device in which a long wire is wound into a succession of closely spaced loops
a)
solenoid
b)
circuit
c)
microchip
d)
processor
e)
battery
23.
What force does a magnetic field apply without actually touching the object?
a)
a push or pull
b)
gravity
c)
friction
d)
pressure
24.
Surrounding a magnet is a __________________ that applies a force, a push or pull, without actually touching an object.
a)
coil
b)
circuit
c)
magnetic field
d)
gravitational field
25.
When the domains in an object align, the object
a)
does not change
b)
becomes magnetic
c)
becomes electric
26.
The opposite ends of a magnet are called_______________.
a)
West and East
b)
Up and Down
c)
Left and Right
d)
North and South
27.
The magnetic force of a material comes from the spinning of what atomic particle?
a)
Proton
b)
Neutron
c)
Electron
d)
Photon
28.
What is the main element used to create a magnet?
a)
Carbon
b)
Gold
c)
Oxygen
d)
Iron
29.
What happens if you hold the south pole of one magnet close to the north pole of another magnet?
a)
They will attract each other
b)
They will repel each other
c)
They will grow very hot
d)
Nothing will happen
30.
What happens if you hold the north poles of two different magnets close to each other?
a)
They will attract each other
b)
They will repel each other
c)
They will grow very hot
d)
Nothing will happen
31.
What creates the protective magnetic field around the Earth?
a)
Volcanoes
b)
The movement of the ocean
c)
The Earth's core
d)
The Moon
32.
What does the Earth's magnetic field protect us from?
a)
The Moon crashing into the Earth
b)
Solar winds and radiation from the Sun
c)
The atmosphere from escaping into space
d)
Weather irregularities
33.
True or False: Compasses point north because the Earth is basically a giant magnet
a)
true
b)
false
34.
True or False: Some animals use the Earth's magnetic field to find the right direction when migrating.
a)
true
b)
false
35.
Like charges or poles
a)
attract
b)
repel
c)
do nothing
36.
Opposite charges or poles
a)
attract
b)
repel
c)
do nothing
37.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
38.
Electric fields are often associated with what other kind of field?
a)
Magnetic Fields
b)
Nuclear Fields
c)
Particle Fields
d)
Corn Fields
39.
Why does each electron in an atom behave like a tiny magnet?
a)
The spinning of an electron produces a magnetic field.
b)
The spinning of an proton produces a magnetic field.
40.
What areas of a magnet have the strongest magnetic effect?
a)
the middle
b)
the poles
c)
the sides
d)
the magnetic field lines
41.
Magnetic poles that are unlike ________and magnetic poles that are alike ___________.
a)
run; stay
b)
attract; repel
c)
stay; repel
d)
repel; attract
42.
What can you use to make an electromagnet?
a)
Battery, nail and string
b)
Battery, pencil and wire
c)
Wire, battery and iron ore (nail)
d)
Peanut butter, lampshade, hand sanitizer
43.
Which device uses mechanical energy to produce electrical energy?
a)
Electric Motor
b)
Magnet
c)
Generator
d)
Solar Cell
44.
What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field?
a)
Electromagnet
b)
Generator
c)
Electron Magnet
d)
Motor
45.
An electrical generator ________.
a)
is a generator powered by electricity
b)
must be turned by hand
c)
converts other sources of power into electrical power
d)
uses magnetism to create electrons
46.
In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.
a)
Wind
b)
Water
c)
Magnets
d)
Circuits
47.
What energy do you put IN to a generator?
a)
Mechanical
b)
Electrical
c)
Thermal
d)
Potential
48.
What type of energy comes OUT of a generator?
a)
Mechanical
b)
Electrical
c)
Thermal
d)
Potential
49.
What happens to the strength of an electromagnet as you add more coils around it?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Stops completely
50.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
51.
Changes electrical energy to mechanical energy.
a)
Electric motor
b)
Generator
c)
Magnet
d)
galvonometer
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